BLACK OPERATIONblack operation · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:BLACK OPERATIONTier 1

Ordinal

142

Pythagorean

61

Classical

134

Reverse

236

Reverse Reduction

83

Standard

904

Final Large

2034

Ordinal

139

Reduced

40

Atbash

573

Isopsephy

759

Ordinal

156

Abjad

749